28616896 has 56 divisors (see below), whose sum is σ = 70811136. Its totient is φ = 11147520.

The previous prime is 28616879. The next prime is 28616927. The reversal of 28616896 is 69861682.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025 + ... + 7831.

Almost surely, 2^28616896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28616896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35405568).

28616896 is an abundant number, since it is smaller than the sum of its proper divisors (42194240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28616896 is a wasteful number, since it uses less digits than its factorization.

28616896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5837 (or 5827 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 28616896 is about 5349.4762360440. The cubic root of 28616896 is about 305.8727880522.

The spelling of 28616896 in words is "twenty-eight million, six hundred sixteen thousand, eight hundred ninety-six".